library-functions.fs (7,10)-(7,17) typecheck error Nullness warning: The type 'String | null' supports 'null' but a non-null type is expected.
library-functions.fs (8,18)-(8,20) typecheck error Value known to be without null passed to a function meant for nullables: You can remove this `nonNull` assertion.
library-functions.fs (11,18)-(11,26) typecheck error Value known to be without null passed to a function meant for nullables: You can remove this `nonNull` assertion.
library-functions.fs (17,27)-(17,38) typecheck error Nullness warning: A non-nullable 'String' was expected but this expression is nullable. Consider either changing the target to also be nullable, or use pattern matching to safely handle the null case of this expression.
library-functions.fs (18,28)-(18,39) typecheck error Nullness warning: A non-nullable 'String' was expected but this expression is nullable. Consider either changing the target to also be nullable, or use pattern matching to safely handle the null case of this expression.
library-functions.fs (20,28)-(20,36) typecheck error Nullness warning: The type 'String | null' supports 'null' but a non-null type is expected.
library-functions.fs (26,17)-(26,19) typecheck error Nullness warning: The type 'string' does not support 'null'.
library-functions.fs (27,10)-(27,16) typecheck error Nullness warning: The type 'String' does not support 'null'.
library-functions.fs (37,17)-(37,21) typecheck error Nullness warning: A non-nullable 'String' was expected but this expression is nullable. Consider either changing the target to also be nullable, or use pattern matching to safely handle the null case of this expression.